Linux Security
    Linux Security
    Linux Security

    Debian: exim arbitrary code execution fix

    Date 12 Jan 2005
    6727
    Posted By Joe Shakespeare
    Philip Hazel announced a buffer overflow in the host_aton function in exim, the default mail-tranport-agent in Debian, which can lead to the execution of arbitrary code via an illegal IPv6 address.
    
    - --------------------------------------------------------------------------
    Debian Security Advisory DSA 635-1                     This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                             Martin Schulze
    January 12th, 2005                      https://www.debian.org/security/faq
    - --------------------------------------------------------------------------
    
    Package        : exim
    Vulnerability  : buffer overflow
    Problem-Type   : remote
    Debian-specific: no
    CVE ID         : CAN-2005-0021
    Debian Bug     : 289046
    
    Philip Hazel announced a buffer overflow in the host_aton function in
    exim, the default mail-tranport-agent in Debian, which can lead to the
    execution of arbitrary code via an illegal IPv6 address.
    
    For the stable distribution (woody) this problem has been fixed in
    version 3.35-1woody4.
    
    For the unstable distribution (sid) this problem has been fixed in
    version 3.36-13 of exim and 4.34-10 of exim4.
    
    We recommend that you upgrade your exim and exim4 packages.
    
    
    Upgrade Instructions
    - --------------------
    
    wget url
            will fetch the file for you
    dpkg -i file.deb
            will install the referenced file.
    
    If you are using the apt-get package manager, use the line for
    sources.list as given below:
    
    apt-get update
            will update the internal database
    apt-get upgrade
            will install corrected packages
    
    You may use an automated update by adding the resources from the
    footer to the proper configuration.
    
    
    Debian GNU/Linux 3.0 alias woody
    - --------------------------------
    
      Source archives:
    
        https://security.debian.org/pool/updates/main/e/exim/exim_3.35-1woody4.dsc
          Size/MD5 checksum:      661 d97ecab579bd3dbaa3e9be00b8b16d85
        https://security.debian.org/pool/updates/main/e/exim/exim_3.35-1woody4.diff.gz
          Size/MD5 checksum:    80195 a02abeefa9d1145ae623ad661aab5f5a
        https://security.debian.org/pool/updates/main/e/exim/exim_3.35.orig.tar.gz
          Size/MD5 checksum:  1271057 42d362e40a21bd7ffc298f92c8bd986a
    
      Alpha architecture:
    
        https://security.debian.org/pool/updates/main/e/exim/exim_3.35-1woody4_alpha.deb
          Size/MD5 checksum:   872796 a46f5dc95d777366cb492eb57ec8dd9f
        https://security.debian.org/pool/updates/main/e/exim/eximon_3.35-1woody4_alpha.deb
          Size/MD5 checksum:    52318 bf93e35aec9f401d8413015c50f5cbae
    
      ARM architecture:
    
        https://security.debian.org/pool/updates/main/e/exim/exim_3.35-1woody4_arm.deb
          Size/MD5 checksum:   785980 5ced90e4c4ecd1ca6a60980634b309e8
        https://security.debian.org/pool/updates/main/e/exim/eximon_3.35-1woody4_arm.deb
          Size/MD5 checksum:    43514 07b7324395ff66f68db354c6b4589db7
    
      Intel IA-32 architecture:
    
        https://security.debian.org/pool/updates/main/e/exim/exim_3.35-1woody4_i386.deb
          Size/MD5 checksum:   759270 9001a456b0a34f4bf5de88d901c70a97
        https://security.debian.org/pool/updates/main/e/exim/eximon_3.35-1woody4_i386.deb
          Size/MD5 checksum:    39210 78e5eecee7101a355ddabec9d0f07b98
    
      Intel IA-64 architecture:
    
        https://security.debian.org/pool/updates/main/e/exim/exim_3.35-1woody4_ia64.deb
          Size/MD5 checksum:   972852 43f4fc30483d8ad5c42e031fd64a9e8d
        https://security.debian.org/pool/updates/main/e/exim/eximon_3.35-1woody4_ia64.deb
          Size/MD5 checksum:    65166 cdc921d9be2ec60b5f0ed95a5b976732
    
      HP Precision architecture:
    
        https://security.debian.org/pool/updates/main/e/exim/exim_3.35-1woody4_hppa.deb
          Size/MD5 checksum:   815358 c506baffb4404f32762468fbc494551c
        https://security.debian.org/pool/updates/main/e/exim/eximon_3.35-1woody4_hppa.deb
          Size/MD5 checksum:    48294 d90efe5be79e966e07a7cbe8e9013939
    
      Motorola 680x0 architecture:
    
        https://security.debian.org/pool/updates/main/e/exim/exim_3.35-1woody4_m68k.deb
          Size/MD5 checksum:   737856 aefe6b63ebd03e9fe449afe22e752547
        https://security.debian.org/pool/updates/main/e/exim/eximon_3.35-1woody4_m68k.deb
          Size/MD5 checksum:    37752 e0d2b938e50c3b408928b8150459ad2b
    
      Big endian MIPS architecture:
    
        https://security.debian.org/pool/updates/main/e/exim/exim_3.35-1woody4_mips.deb
          Size/MD5 checksum:   824458 0c1db679287a6de37f2c320f335c650c
        https://security.debian.org/pool/updates/main/e/exim/eximon_3.35-1woody4_mips.deb
          Size/MD5 checksum:    48882 1670c36409482a8a870becf826f7ae68
    
      Little endian MIPS architecture:
    
        https://security.debian.org/pool/updates/main/e/exim/exim_3.35-1woody4_mipsel.deb
          Size/MD5 checksum:   824846 88564f1d1b0c1781587d5db1bccdde77
        https://security.debian.org/pool/updates/main/e/exim/eximon_3.35-1woody4_mipsel.deb
          Size/MD5 checksum:    48778 6a7002c766a84dd81eed39d23f8709d5
    
      PowerPC architecture:
    
        https://security.debian.org/pool/updates/main/e/exim/exim_3.35-1woody4_powerpc.deb
          Size/MD5 checksum:   794244 abfa2009cd6417101d120a5980641012
        https://security.debian.org/pool/updates/main/e/exim/eximon_3.35-1woody4_powerpc.deb
          Size/MD5 checksum:    44794 ea626fcb485a423fb56e61a1c4ae67e9
    
      IBM S/390 architecture:
    
        https://security.debian.org/pool/updates/main/e/exim/exim_3.35-1woody4_s390.deb
          Size/MD5 checksum:   780026 bc9a3b5488cd7ee72c290f86f601beec
        https://security.debian.org/pool/updates/main/e/exim/eximon_3.35-1woody4_s390.deb
          Size/MD5 checksum:    43930 f50688c682bcaeabfbd47c9e46a06143
    
      Sun Sparc architecture:
    
        https://security.debian.org/pool/updates/main/e/exim/exim_3.35-1woody4_sparc.deb
          Size/MD5 checksum:   785298 1841407d21f544cf2645e373a6caad15
        https://security.debian.org/pool/updates/main/e/exim/eximon_3.35-1woody4_sparc.deb
          Size/MD5 checksum:    42444 632b5aadc5c930c7c3e956fef10d5ffe
    
    
      These files will probably be moved into the stable distribution on
      its next update.
    
    - ---------------------------------------------------------------------------------
    For apt-get: deb https://security.debian.org/ stable/updates main
    For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
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